6pears for $2.10. how much is each pear?

Answer this 30 points and brainliest!

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)